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287030005239 = 3195035614127
BaseRepresentation
bin1000010110101000101…
…00100100110111110111
31000102212121121000201210
410023110110210313313
514200314140131424
6335505413052503
726510604534465
oct4132424446767
91012777530653
10287030005239
11100801a5626a
1247765927133
13210b3a343b3
14dc6c787835
1576edbd7729
hex42d4524df7

287030005239 has 8 divisors (see below), whose sum is σ = 402849130240. Its totient is φ = 181282108536.

The previous prime is 287030005231. The next prime is 287030005279. The reversal of 287030005239 is 932500030782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 287030005239 - 23 = 287030005231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 287030005197 and 287030005206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287030005231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517807007 + ... + 2517807120.

It is an arithmetic number, because the mean of its divisors is an integer number (50356141280).

Almost surely, 2287030005239 is an apocalyptic number.

287030005239 is a deficient number, since it is larger than the sum of its proper divisors (115819125001).

287030005239 is a wasteful number, since it uses less digits than its factorization.

287030005239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035614149.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 287030005239 in words is "two hundred eighty-seven billion, thirty million, five thousand, two hundred thirty-nine".

Divisors: 1 3 19 57 5035614127 15106842381 95676668413 287030005239